Top LLM Development Companies & Firms

Explore leading LLM development companies and firms building large language model solutions, AI assistants, enterprise applications and intelligent automation systems. Compare ratings, reviews, technical expertise and services to select an LLM development partner.

Top-Rated LLM Development Companies

Showing 161–170 of 172 agencies

TatvaSoft

Verified

Web Development, Mobile App Development, AI/ML

Manish Patel

Founder & CEO

TatvaSoft is a custom software development company with 1,350+ IT professionals serving clients from startups to Fortune 500 companies across 36 countries, including offices in the US, UK, Canada, Australia, and Japan. It covers the full technology stack from custom and web/mobile development to cloud, DevOps, QA, and emerging AI/ML work, with particular depth in enterprise .NET/C# development for fintech, insurance, retail, and travel clients.

Team Size1,000-9,999
LocationAhmedabad, India
Min. Project$25,000+
Hourly Rate$25/hr
Web Development Mobile App Development AI/ML Development Cloud and DevOps UI/UX Design

Mindbowser

Verified

Software Development, Healthcare AI, HIPAA Compliance,

Ayush Jain

CEO

Mindbowser is a Pune, India-headquartered outsourced product development company founded in 2012. It specializes in healthcare software, building HIPAA-compliant digital health platforms, telehealth and remote-patient-monitoring tools, and EHR/EMR integrations using HL7/FHIR standards, alongside broader custom web and mobile app development. Its primary industry focus is healthcare and digital health, though it also serves general SaaS and startup clients. Its strongest and most differentiated expertise is healthcare-specific software and emerging healthcare AI solutions.

Team Size250-999
LocationPune, India
Min. Project$50,000+
Hourly Rate$25-$49/hr
Software Development Healthcare AI HIPAA Compliance Telehealth Development Remote Patient Monitoring HL7/FHIR & EMR/EHR Integration Mobile App Development (React Native Flutter) Web Development (.NET Ruby on Rails Angular React Node.js) Custom Software/Product Development UX/UI Design

Suffescom Solutions Inc

Verified

Mobile App Development, Web Development, Blockchain

Gurpreet Singh Walia

Chief Executive Officer

Suffescom Solutions is a software development company founded in 2013 in Mohali, Punjab, India, that builds custom mobile and web applications, blockchain/Web3 platforms, and AI-driven features such as recommendation engines, chatbots, and NLP tools. It serves financial services and healthcare clients primarily, as well as e-commerce, real estate, and crypto/Web3 startups, frequently taking projects from no-code prototypes to scaled, production mobile marketplaces. Its strongest area of expertise is blockchain/Web3 app development combined with AI feature integration layered onto its core full-cycle mobile and web development practice.

Team Size250-999
LocationMohali, India
Min. Project$25,000+
Hourly Rate$25-$49/hr
Mobile App Development Web Development Blockchain Development AI Development (Recommendation Systems Chatbots NLP Machine Learning) AR & VR Development React Native Flutter Node.js Next.js Cloud (AWS Azure Google App Engine)

OpenXcell

Verified

Mobile App Development, Web Development, Custom

Jayneel Patel

Founder & CEO

OpenXcell is an IT consulting and custom software development company whose services span mobile/web app development, blockchain, and increasingly generative AI work including LLM development and RAG-as-a-service offerings. Its strongest positioning is as an offshore product-engineering partner for startups and SMBs needing full-cycle outsourced builds at lower cost than US-based teams, with growing emphasis on AI consulting layered on its custom development practice.

Team Size250-999
LocationAhmedabad, India
Min. Project$10,000+
Hourly Rate$25-$49/hr
Mobile App Development Web Development Custom Software Development Blockchain Generative AI LLM Development RAG as a Service AI Consulting Low/No Code Development UX/UI Design Cloud & DevOps Systems Integration

SoftServe

Verified

Custom Software Development, Enterprise App Modernization,

Andriy Stytsyuk

Chief Executive Officer

SoftServe is a digital consulting and software engineering firm that builds custom applications, cloud platforms, and increasingly AI-driven solutions, with particular depth in enterprise application modernization, big-data/BI systems, and IT strategy consulting. It serves regulated and complex industries such as healthcare, financial services, retail, and energy, drawing on large US and Central/Eastern European delivery teams, layering generative-AI and machine-learning capability onto its longstanding custom-software practice.

Team Size10,000+
LocationAustin, USA
Min. Project$50,000+
Hourly Rate$100-$149/hr
Custom Software Development Enterprise App Modernization IT Strategy Consulting AI Development Application Testing Blockchain Cloud Consulting & SI Cybersecurity E-Commerce Development IoT Development UX/UI Design

Grid Dynamics

Verified

Digital Engineering, AI & Machine Learning,

Leonard Livschitz

Chief Executive Officer

Grid Dynamics is a digital engineering and applied-AI company that helps large enterprises modernize technology platforms, build data and analytics pipelines, and deploy AI-driven search, recommendation, and merchandising systems. It works primarily with retail, consumer packaged goods, manufacturing, insurance, and life-sciences clients, pairing large-scale platform engineering with generative-AI and machine-learning solutions such as its enterprise search and merchandising work for retailers.

Team Size4,964
LocationSan Ramon, USA
Min. Project$10,000+
Hourly Rate$25-$49/hr
Digital Engineering AI & Machine Learning Cloud Migration Application Development

NTT DATA

Verified

Mobile App Development, Web Development, AI

Kazuhiko Nakayama

President

NTT DATA is a Japan-headquartered, large-scale IT services and consulting company within the NTT group that provides systems integration, application development, cloud migration, cybersecurity, SAP consulting, and business-process outsourcing to enterprises and governments worldwide. It serves banking, insurance, healthcare, manufacturing, automotive, retail, and public-sector clients at global scale, and has been expanding into generative AI, including its own large language model, tsuzumi.

Team Size50-249
LocationTokyo, Japan
Min. Project$5,000+
Hourly Rate$25/hr
Mobile App Development Web Development AI Development IT Staff Augmentation E-Commerce Development

Globant

Verified

Digital Transformation, AI/Generative AI Consulting, Cloud

Martín Migoya

Co-Founder, Chairman & CEO

Globant is a digitally-native IT and software engineering company that builds custom software, cloud platforms, UX/UI, and mobile products, and has pivoted toward generative-AI-driven delivery through its AI-native positioning and AI partnerships. It serves media & entertainment, retail, banking, sports, travel, and consumer goods clients globally, with particularly deep expertise in large-scale digital commerce and platform modernization for major global brands.

Team Size28,000+
LocationLuxembourg City, Argentina
Min. Project$5,000+
Hourly Rate$25-$49/hr
Digital Transformation AI/Generative AI Consulting Cloud Consulting UX/UI Design Mobile App Development Data & Analytics Web Development

N-iX

Verified

AI Development, BI & Big Data

Pavlo Deshchynskyy

Chief Executive Officer

N-iX is a Ukraine-founded custom software development company that builds digital products, cloud solutions, and data platforms for clients in finance, retail, healthcare, logistics, and automotive. Its services include AI-augmented software engineering, generative AI and AI-agent development, cloud migration/DevOps, and data engineering, typically delivered through dedicated development teams and staff augmentation. N-iX is particularly recognized for combining large-scale custom engineering delivery with applied AI and data-analytics work for mid-size and enterprise clients.

Team Size1,000-9,999
LocationLviv, Ukraine
Min. Project$100,000+
Hourly Rate$50-$99/hr
AI Development BI & Big Data Consulting Custom Software Development Cloud Consulting IT Staff Augmentation Data Engineering

LeewayHertz

Verified

AI Development, Custom Software Development, Mobile

Akash Takyar

Founder & CEO

LeewayHertz is a Gurugram-headquartered AI and software engineering company, now part of The Hackett Group, that designs and builds custom AI platforms, generative AI and LLM applications, and full-stack web and mobile software for startups, scale-ups, and enterprises. Its service range spans AI consulting and deployment, blockchain/Web3, data engineering, and dedicated-developer staffing across finance, insurance, manufacturing, logistics, and healthcare clients.

Team Size50-249
LocationGurugram, India
Min. Project$10,000+
Hourly Rate$50-$99/hr
AI Development Custom Software Development Mobile App Development Web Design
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Explore detailed company profiles with key information such as services, expertise, team size, location, project requirements, and other business details.

Read client reviews and ratings to understand how companies have performed on real projects and what their customers say about their services.

Compare IT service providers based on their expertise, experience, services, ratings, reviews, pricing, and other relevant factors before making a decision.

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How to Choose the Right AI Development Company

Choosing the right development partner according to your business requirements can be very complicated. If you have a list of companies and are unsure which one to choose, we understand your problem, don't worry, we have a solution.

You can follow these steps to make the process easier and find the right technology partner that best meets your business requirements.

Relevant AI Expertise and Experience

Checking relevant AI expertise and experience helps you choose the right company for your project. If they have worked on similar projects, you can trust them more and feel confident that they can handle your project properly.

Client Reviews and Reputation

Before choosing a development partner, take some time to check what their previous clients say. Reviews can give you an idea about their communication, project handling, quality of work, and overall reliability. A company with positive feedback and a good reputation can give you more confidence when choosing the right development partner.

Technical Team

It’s important to check the technical team before choosing a development partner. Their skills and experience directly affect how well your project is handled. Make sure the team has the right technical knowledge and can understand your requirements, manage challenges, and deliver the project as expected. 

Pricing and Project Requirements

Don’t look at the price alone first see whether it matches your project requirements. A clear understanding of the project scope helps you know what you’re paying for and what will be delivered. This makes it easier to find a development partner that suits both your requirements and budget. 

Mistakes to Avoid When Choosing an AI Development Partner

Many businesses make mistakes when choosing the right AI development partner for their specific requirements. This checklist can help you avoid mistakes and make a better decision before selecting the right AI development company for your project. 

Mistakes To Avoid:

  • Choosing based only on low cost: Most people making this mistake don't choose a company only because of low pricing. Consider experience, technical skills, quality, and overall project value.
  • Not checking similar AI projects: Check whether the company has completed similar AI projects. Relevant experience helps you understand whether they can handle your requirements.
  • Relying on demos instead of proven results: Don’t depend only on demos. Check previous projects, case studies, and actual results to understand the company’s delivery capabilities.
  • Ignoring security/privacy: Make sure the company understands your security and privacy requirements, especially when your AI project involves sensitive business or customer data.
  • Not clarifying scope, timeline, and ownership: Clearly discuss project scope, timeline, deliverables, and ownership before development starts to avoid confusion or disagreements later.
  • Failing to discuss ongoing support: Discuss post-launch support, maintenance, updates, and issue resolution beforehand to ensure your AI solution remains reliable after deployment.

Questions to Ask Before Hiring an AI Development Partner

Asking the right questions is a good choice before you choose a developing Partner because these questions can help you understand their experience, technical approach, pricing, and support. It also helps you make sure the company is a good fit for your project requirements.

  1. Have you built similar AI solutions?
    Ask about their experience with projects similar to yours to understand whether they can handle your requirements.
  2. Can you show relevant case studies?
    Reviewing previous work helps you understand their capabilities and the results they have delivered for other clients.
  3. Who will work on my project?
    Understand who will be involved and whether the team has the right technical expertise.
  4. Which AI technology or model do you recommend?
    Ask why they recommend a particular technology or model and how it fits your business needs.
  5. How will you protect our data?
    Discuss data security, privacy, access controls, and how your business information will be handled.
  6. What is the estimated cost and timeline?
    Get a clear estimate of the project cost, development timeline, and expected deliverables.
  7. Who owns the source code and IP?
    Clarify ownership of the source code, intellectual property, and other project assets before development begins.
  8. Do you provide post-launch support?
    Ask about ongoing maintenance, updates, monitoring, and technical support after the AI solution goes live.

FAQs

Our top companies list is compiled from verified client reviews, portfolio quality, team expertise, and delivery track record. Rankings are refreshed regularly to reflect the latest verified feedback.

Top Companies
AI Development
AI Agents
AI Chatbot
Conversational AI
EdTech AI Development
FinTech AI Development
Generative AI
Healthcare AI Development
AI Consulting
Logistics AI Development
Machine Learning
Manufacturing AI Development
Telecom AI Development
AI Engineering
AI Integration

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